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-rw-r--r--firmware/target/arm/samsung/yh925/backlight-yh925.c47
-rw-r--r--firmware/target/arm/samsung/yh925/lcd-as-yh925.S538
-rw-r--r--firmware/target/arm/samsung/yh925/lcd-yh925.c638
-rw-r--r--firmware/target/arm/samsung/yh925/powermgmt-yh925.c59
4 files changed, 1282 insertions, 0 deletions
diff --git a/firmware/target/arm/samsung/yh925/backlight-yh925.c b/firmware/target/arm/samsung/yh925/backlight-yh925.c
new file mode 100644
index 0000000000..2dac1d7a81
--- /dev/null
+++ b/firmware/target/arm/samsung/yh925/backlight-yh925.c
@@ -0,0 +1,47 @@
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2006 by Barry Wardell
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version 2
15 * of the License, or (at your option) any later version.
16 *
17 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
18 * KIND, either express or implied.
19 *
20 ****************************************************************************/
21#include "config.h"
22#include "cpu.h"
23#include "system.h"
24#include "backlight.h"
25#include "lcd.h"
26
27void _backlight_on(void)
28{
29#ifdef HAVE_LCD_SLEEP
30 backlight_lcd_sleep_countdown(false); /* stop counter */
31#endif
32#ifdef HAVE_LCD_ENABLE
33 lcd_enable(true); /* power on lcd + visible display */
34#endif
35 GPIO_SET_BITWISE(GPIOF_OUTPUT_VAL, 0x1);
36}
37
38void _backlight_off(void)
39{
40 GPIO_CLEAR_BITWISE(GPIOF_OUTPUT_VAL, 0x1);
41#ifdef HAVE_LCD_ENABLE
42 lcd_enable(false); /* power off visible display */
43#endif
44#ifdef HAVE_LCD_SLEEP
45 backlight_lcd_sleep_countdown(true); /* start countdown */
46#endif
47}
diff --git a/firmware/target/arm/samsung/yh925/lcd-as-yh925.S b/firmware/target/arm/samsung/yh925/lcd-as-yh925.S
new file mode 100644
index 0000000000..ba6c876d44
--- /dev/null
+++ b/firmware/target/arm/samsung/yh925/lcd-as-yh925.S
@@ -0,0 +1,538 @@
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2007-2008 by Michael Sevakis
11 *
12 * H10 20GB LCD assembly routines
13 *
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License
16 * as published by the Free Software Foundation; either version 2
17 * of the License, or (at your option) any later version.
18 *
19 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
20 * KIND, either express or implied.
21 *
22 ****************************************************************************/
23
24#include "config.h"
25#include "cpu.h"
26
27/****************************************************************************
28 * void lcd_write_yuv_420_lines(unsigned char const * const src[3],
29 * int width,
30 * int stride);
31 *
32 * |R| |1.000000 -0.000001 1.402000| |Y'|
33 * |G| = |1.000000 -0.334136 -0.714136| |Pb|
34 * |B| |1.000000 1.772000 0.000000| |Pr|
35 * Scaled, normalized, rounded and tweaked to yield RGB 565:
36 * |R| |74 0 101| |Y' - 16| >> 9
37 * |G| = |74 -24 -51| |Cb - 128| >> 8
38 * |B| |74 128 0| |Cr - 128| >> 9
39 *
40 * Write four RGB565 pixels in the following order on each loop:
41 * 1 3 + > down
42 * 2 4 \/ left
43 */
44 .section .icode, "ax", %progbits
45 .align 2
46 .global lcd_write_yuv420_lines
47 .type lcd_write_yuv420_lines, %function
48lcd_write_yuv420_lines:
49 @ r0 = yuv_src
50 @ r1 = width
51 @ r2 = stride
52 stmfd sp!, { r4-r12, lr } @ save non-scratch
53 ldmia r0, { r4, r5, r6 } @ r4 = yuv_src[0] = Y'_p
54 @ r5 = yuv_src[1] = Cb_p
55 @ r6 = yuv_src[2] = Cr_p
56 @
57 mov r0, #0x7000000c @ r0 = &LCD2_PORT = 0x70008a0c
58 add r0, r0, #0x8a00 @
59 mov r14, #LCD2_DATA_MASK @
60 @
61 sub r2, r2, #1 @ Adjust stride because of increment
6210: @ loop line @
63 ldrb r7, [r4], #1 @ r7 = *Y'_p++;
64 ldrb r8, [r5], #1 @ r8 = *Cb_p++;
65 ldrb r9, [r6], #1 @ r9 = *Cr_p++;
66 @
67 sub r7, r7, #16 @ r7 = Y = (Y' - 16)*74
68 add r12, r7, r7, asl #2 @ actually (Y' - 16)*37 and shift right
69 add r7, r12, r7, asl #5 @ by one less when adding - same for all
70 @
71 sub r8, r8, #128 @ Cb -= 128
72 sub r9, r9, #128 @ Cr -= 128
73 @
74 add r10, r9, r9, asl #1 @ r10 = Cr*51 + Cb*24
75 add r10, r10, r10, asl #4 @
76 add r10, r10, r8, asl #3 @
77 add r10, r10, r8, asl #4 @
78 @
79 add r11, r9, r9, asl #2 @ r9 = Cr*101
80 add r11, r11, r9, asl #5 @
81 add r9, r11, r9, asl #6 @
82 @
83 add r8, r8, #2 @ r8 = bu = (Cb*128 + 128) >> 8
84 mov r8, r8, asr #2 @
85 add r9, r9, #256 @ r9 = rv = (r8 + 256) >> 9
86 mov r9, r9, asr #9 @
87 rsb r10, r10, #128 @ r10 = guv = (-r9 + 128) >> 8
88 mov r10, r10, asr #8 @
89 @ compute R, G, and B
90 add r3, r8, r7, asr #8 @ r3 = b = (Y >> 9) + bu
91 add r11, r9, r7, asr #8 @ r11 = r = (Y >> 9) + rv
92 add r7, r10, r7, asr #7 @ r7 = g = (Y >> 8) + guv
93 @
94 orr r12, r3, r11 @ check if clamping is needed...
95 orr r12, r12, r7, asr #1 @ ...at all
96 cmp r12, #31 @
97 bls 15f @ no clamp @
98 cmp r3, #31 @ clamp b
99 mvnhi r3, r3, asr #31 @
100 andhi r3, r3, #31 @
101 cmp r11, #31 @ clamp r
102 mvnhi r11, r11, asr #31 @
103 andhi r11, r11, #31 @
104 cmp r7, #63 @ clamp g
105 mvnhi r7, r7, asr #31 @
106 andhi r7, r7, #63 @
10715: @ no clamp @
108 @
109 ldrb r12, [r4, r2] @ r12 = Y' = *(Y'_p + stride)
110 @
111 orr r3, r3, r11, lsl #11 @ r3 = b | (r << 11)
112 orr r3, r3, r7, lsl #5 @ r3 |= (g << 5)
113 @
114 orr r7, r14, r3, lsr #8 @ store pixel
115 orr r11, r14, r3 @
11620: @
117 ldr r3, [r0] @
118 tst r3, #LCD2_BUSY_MASK @
119 bne 20b @
120 str r7, [r0] @
121 str r11, [r0] @
122 @
123 sub r7, r12, #16 @ r7 = Y = (Y' - 16)*74
124 add r12, r7, r7, asl #2 @
125 add r7, r12, r7, asl #5 @
126 @ compute R, G, and B
127 add r3, r8, r7, asr #8 @ r3 = b = (Y >> 9) + bu
128 add r11, r9, r7, asr #8 @ r11 = r = (Y >> 9) + rv
129 add r7, r10, r7, asr #7 @ r7 = g = (Y >> 8) + guv
130 @
131 orr r12, r3, r11 @ check if clamping is needed...
132 orr r12, r12, r7, asr #1 @ ...at all
133 cmp r12, #31 @
134 bls 15f @ no clamp @
135 cmp r3, #31 @ clamp b
136 mvnhi r3, r3, asr #31 @
137 andhi r3, r3, #31 @
138 cmp r11, #31 @ clamp r
139 mvnhi r11, r11, asr #31 @
140 andhi r11, r11, #31 @
141 cmp r7, #63 @ clamp g
142 mvnhi r7, r7, asr #31 @
143 andhi r7, r7, #63 @
14415: @ no clamp @
145 @
146 ldrb r12, [r4], #1 @ r12 = Y' = *(Y'_p++)
147 @
148 orr r3, r3, r11, lsl #11 @ r3 = b | (r << 11)
149 orr r3, r3, r7, lsl #5 @ r3 |= (g << 5)
150 @
151 orr r7, r14, r3, lsr #8 @ store pixel
152 orr r11, r14, r3 @
15320: @
154 ldr r3, [r0] @
155 tst r3, #LCD2_BUSY_MASK @
156 bne 20b @
157 str r7, [r0] @
158 str r11, [r0] @
159 @
160 sub r7, r12, #16 @ r7 = Y = (Y' - 16)*74
161 add r12, r7, r7, asl #2 @
162 add r7, r12, r7, asl #5 @
163 @ compute R, G, and B
164 add r3, r8, r7, asr #8 @ r3 = b = (Y >> 9) + bu
165 add r11, r9, r7, asr #8 @ r11 = r = (Y >> 9) + rv
166 add r7, r10, r7, asr #7 @ r7 = g = (Y >> 8) + guv
167 @
168 orr r12, r3, r11 @ check if clamping is needed...
169 orr r12, r12, r7, asr #1 @ ...at all
170 cmp r12, #31 @
171 bls 15f @ no clamp @
172 cmp r3, #31 @ clamp b
173 mvnhi r3, r3, asr #31 @
174 andhi r3, r3, #31 @
175 cmp r11, #31 @ clamp r
176 mvnhi r11, r11, asr #31 @
177 andhi r11, r11, #31 @
178 cmp r7, #63 @ clamp g
179 mvnhi r7, r7, asr #31 @
180 andhi r7, r7, #63 @
18115: @ no clamp @
182 @
183 ldrb r12, [r4, r2] @ r12 = Y' = *(Y'_p + stride)
184 @
185 orr r3, r3, r7, lsl #5 @ r3 = b | (g << 5)
186 orr r3, r3, r11, lsl #11 @ r3 |= (r << 11)
187 @
188 orr r7, r14, r3, lsr #8 @ store pixel
189 orr r11, r14, r3 @
19020: @
191 ldr r3, [r0] @
192 tst r3, #LCD2_BUSY_MASK @
193 bne 20b @
194 str r7, [r0] @
195 str r11, [r0] @
196 @
197 sub r7, r12, #16 @ r7 = Y = (Y' - 16)*74
198 add r12, r7, r7, asl #2 @
199 add r7, r12, r7, asl #5 @
200 @ compute R, G, and B
201 add r3, r8, r7, asr #8 @ r3 = b = (Y >> 9) + bu
202 add r11, r9, r7, asr #8 @ r11 = r = (Y >> 9) + rv
203 add r7, r10, r7, asr #7 @ r7 = g = (Y >> 8) + guv
204 @
205 orr r12, r3, r11 @ check if clamping is needed...
206 orr r12, r12, r7, asr #1 @ ...at all
207 cmp r12, #31 @
208 bls 15f @ no clamp @
209 cmp r3, #31 @ clamp b
210 mvnhi r3, r3, asr #31 @
211 andhi r3, r3, #31 @
212 cmp r11, #31 @ clamp r
213 mvnhi r11, r11, asr #31 @
214 andhi r11, r11, #31 @
215 cmp r7, #63 @ clamp g
216 mvnhi r7, r7, asr #31 @
217 andhi r7, r7, #63 @
21815: @ no clamp @
219 @
220 orr r3, r3, r11, lsl #11 @ r3 = b | (r << 11)
221 orr r3, r3, r7, lsl #5 @ r3 |= (g << 5)
222 @
223 orr r7, r14, r3, lsr #8 @ store pixel
224 orr r11, r14, r3 @
22520: @
226 ldr r3, [r0] @
227 tst r3, #LCD2_BUSY_MASK @
228 bne 20b @
229 str r7, [r0] @
230 str r11, [r0] @
231 @
232 subs r1, r1, #2 @ subtract block from width
233 bgt 10b @ loop line @
234 @
235 ldmfd sp!, { r4-r12, pc } @ restore registers and return
236 .ltorg @ dump constant pool
237 .size lcd_write_yuv420_lines, .-lcd_write_yuv420_lines
238
239
240/****************************************************************************
241 * void lcd_write_yuv_420_lines_odither(unsigned char const * const src[3],
242 * int width,
243 * int stride,
244 * int x_screen,
245 * int y_screen);
246 *
247 * |R| |1.000000 -0.000001 1.402000| |Y'|
248 * |G| = |1.000000 -0.334136 -0.714136| |Pb|
249 * |B| |1.000000 1.772000 0.000000| |Pr|
250 * Red scaled at twice g & b but at same precision to place it in correct
251 * bit position after multiply and leave instruction count lower.
252 * |R| |258 0 408| |Y' - 16|
253 * |G| = |149 -49 -104| |Cb - 128|
254 * |B| |149 258 0| |Cr - 128|
255 *
256 * Write four RGB565 pixels in the following order on each loop:
257 * 1 3 + > down
258 * 2 4 \/ left
259 *
260 * Kernel pattern (raw|use order):
261 * 5 3 4 2 row0 row2 > down
262 * 1 7 0 6 | 5 1 3 7 4 0 2 6 col0 left
263 * 4 2 5 3 | 4 0 2 6 5 1 3 7 col2 \/
264 * 0 6 1 7
265 */
266 .section .icode, "ax", %progbits
267 .align 2
268 .global lcd_write_yuv420_lines_odither
269 .type lcd_write_yuv420_lines_odither, %function
270lcd_write_yuv420_lines_odither:
271 @ r0 = yuv_src
272 @ r1 = width
273 @ r2 = stride
274 @ r3 = x_screen
275 @ [sp] = y_screen
276 stmfd sp!, { r4-r12, lr } @ save non-scratch
277 ldmia r0, { r4, r5, r6 } @ r4 = yuv_src[0] = Y'_p
278 @ r5 = yuv_src[1] = Cb_p
279 @ r6 = yuv_src[2] = Cr_p
280 @
281 ldr r0, [sp, #40] @ Line up pattern and kernel quadrant
282 eor r14, r3, r0 @
283 and r14, r14, #0x2 @
284 mov r14, r14, lsl #6 @ 0x00 or 0x80
285 @
286 mov r0, #0x7000000c @ r0 = &LCD2_PORT = 0x70008a0c
287 add r0, r0, #0x8a00 @
288 @
289 sub r2, r2, #1 @ Adjust stride because of increment
29010: @ loop line @
291 @
292 ldrb r7, [r4], #1 @ r7 = *Y'_p++;
293 ldrb r8, [r5], #1 @ r8 = *Cb_p++;
294 ldrb r9, [r6], #1 @ r9 = *Cr_p++;
295 @
296 eor r14, r14, #0x80 @ flip pattern quadrant
297 @
298 sub r7, r7, #16 @ r7 = Y = (Y' - 16)*149
299 add r12, r7, r7, asl #2 @
300 add r12, r12, r12, asl #4 @
301 add r7, r12, r7, asl #6 @
302 @
303 sub r8, r8, #128 @ Cb -= 128
304 sub r9, r9, #128 @ Cr -= 128
305 @
306 add r10, r8, r8, asl #4 @ r10 = guv = Cr*104 + Cb*49
307 add r10, r10, r8, asl #5 @
308 add r10, r10, r9, asl #3 @
309 add r10, r10, r9, asl #5 @
310 add r10, r10, r9, asl #6 @
311 @
312 mov r8, r8, asl #1 @ r8 = bu = Cb*258
313 add r8, r8, r8, asl #7 @
314 @
315 add r9, r9, r9, asl #1 @ r9 = rv = Cr*408
316 add r9, r9, r9, asl #4 @
317 mov r9, r9, asl #3 @
318 @
319 @ compute R, G, and B
320 add r3, r8, r7 @ r3 = b' = Y + bu
321 add r11, r9, r7, asl #1 @ r11 = r' = Y*2 + rv
322 rsb r7, r10, r7 @ r7 = g' = Y + guv
323 @
324 @ r8 = bu, r9 = rv, r10 = guv
325 @
326 sub r12, r3, r3, lsr #5 @ r3 = 31/32*b + b/256
327 add r3, r12, r3, lsr #8 @
328 @
329 sub r12, r11, r11, lsr #5 @ r11 = 31/32*r + r/256
330 add r11, r12, r11, lsr #8 @
331 @
332 sub r12, r7, r7, lsr #6 @ r7 = 63/64*g + g/256
333 add r7, r12, r7, lsr #8 @
334 @
335 add r12, r14, #0x200 @
336 @
337 add r3, r3, r12 @ b = r3 + delta
338 add r11, r11, r12, lsl #1 @ r = r11 + delta*2
339 add r7, r7, r12, lsr #1 @ g = r7 + delta/2
340 @
341 orr r12, r3, r11, asr #1 @ check if clamping is needed...
342 orr r12, r12, r7 @ ...at all
343 movs r12, r12, asr #15 @
344 beq 15f @ no clamp @
345 movs r12, r3, asr #15 @ clamp b
346 mvnne r3, r12, lsr #15 @
347 andne r3, r3, #0x7c00 @ mask b only if clamped
348 movs r12, r11, asr #16 @ clamp r
349 mvnne r11, r12, lsr #16 @
350 movs r12, r7, asr #15 @ clamp g
351 mvnne r7, r12, lsr #15 @
35215: @ no clamp @
353 @
354 ldrb r12, [r4, r2] @ r12 = Y' = *(Y'_p + stride)
355 @
356 and r11, r11, #0xf800 @ pack pixel
357 and r7, r7, #0x7e00 @ r3 = pixel = (r & 0xf800) |
358 orr r11, r11, r7, lsr #4 @ ((g & 0x7e00) >> 4) |
359 orr r3, r11, r3, lsr #10 @ (b >> 10)
360 @
361 mov r11, #LCD2_DATA_MASK @ store pixel
362 orr r7, r11, r3, lsr #8 @
363 orr r11, r11, r3 @
36420: @
365 ldr r3, [r0] @
366 tst r3, #LCD2_BUSY_MASK @
367 bne 20b @
368 str r7, [r0] @
369 str r11, [r0] @
370 @
371 sub r7, r12, #16 @ r7 = Y = (Y' - 16)*149
372 add r12, r7, r7, asl #2 @
373 add r12, r12, r12, asl #4 @
374 add r7, r12, r7, asl #6 @
375 @ compute R, G, and B
376 add r3, r8, r7 @ r3 = b' = Y + bu
377 add r11, r9, r7, asl #1 @ r11 = r' = Y*2 + rv
378 rsb r7, r10, r7 @ r7 = g' = Y + guv
379 @
380 sub r12, r3, r3, lsr #5 @ r3 = 31/32*b' + b'/256
381 add r3, r12, r3, lsr #8 @
382 @
383 sub r12, r11, r11, lsr #5 @ r11 = 31/32*r' + r'/256
384 add r11, r12, r11, lsr #8 @
385 @
386 sub r12, r7, r7, lsr #6 @ r7 = 63/64*g' + g'/256
387 add r7, r12, r7, lsr #8 @
388 @
389 @ This element is zero - use r14 @
390 @
391 add r3, r3, r14 @ b = r3 + delta
392 add r11, r11, r14, lsl #1 @ r = r11 + delta*2
393 add r7, r7, r14, lsr #1 @ g = r7 + delta/2
394 @
395 orr r12, r3, r11, asr #1 @ check if clamping is needed...
396 orr r12, r12, r7 @ ...at all
397 movs r12, r12, asr #15 @
398 beq 15f @ no clamp @
399 movs r12, r3, asr #15 @ clamp b
400 mvnne r3, r12, lsr #15 @
401 andne r3, r3, #0x7c00 @ mask b only if clamped
402 movs r12, r11, asr #16 @ clamp r
403 mvnne r11, r12, lsr #16 @
404 movs r12, r7, asr #15 @ clamp g
405 mvnne r7, r12, lsr #15 @
40615: @ no clamp @
407 @
408 ldrb r12, [r4], #1 @ r12 = Y' = *(Y'_p++)
409 @
410 and r11, r11, #0xf800 @ pack pixel
411 and r7, r7, #0x7e00 @ r3 = pixel = (r & 0xf800) |
412 orr r11, r11, r7, lsr #4 @ ((g & 0x7e00) >> 4) |
413 orr r3, r11, r3, lsr #10 @ (b >> 10)
414 @
415 mov r11, #LCD2_DATA_MASK @ store pixel
416 orr r7, r11, r3, lsr #8 @
417 orr r11, r11, r3 @
41820: @
419 ldr r3, [r0] @
420 tst r3, #LCD2_BUSY_MASK @
421 bne 20b @
422 str r7, [r0] @
423 str r11, [r0] @
424 @
425 sub r7, r12, #16 @ r7 = Y = (Y' - 16)*149
426 add r12, r7, r7, asl #2 @
427 add r12, r12, r12, asl #4 @
428 add r7, r12, r7, asl #6 @
429 @ compute R, G, and B
430 add r3, r8, r7 @ r3 = b' = Y + bu
431 add r11, r9, r7, asl #1 @ r11 = r' = Y*2 + rv
432 rsb r7, r10, r7 @ r7 = g' = Y + guv
433 @
434 @ r8 = bu, r9 = rv, r10 = guv
435 @
436 sub r12, r3, r3, lsr #5 @ r3 = 31/32*b' + b'/256
437 add r3, r12, r3, lsr #8 @
438 @
439 sub r12, r11, r11, lsr #5 @ r11 = 31/32*r' + r'/256
440 add r11, r12, r11, lsr #8 @
441 @
442 sub r12, r7, r7, lsr #6 @ r7 = 63/64*g' + g'/256
443 add r7, r12, r7, lsr #8 @
444 @
445 add r12, r14, #0x100 @
446 @
447 add r3, r3, r12 @ b = r3 + delta
448 add r11, r11, r12, lsl #1 @ r = r11 + delta*2
449 add r7, r7, r12, lsr #1 @ g = r7 + delta/2
450 @
451 orr r12, r3, r11, asr #1 @ check if clamping is needed...
452 orr r12, r12, r7 @ ...at all
453 movs r12, r12, asr #15 @
454 beq 15f @ no clamp @
455 movs r12, r3, asr #15 @ clamp b
456 mvnne r3, r12, lsr #15 @
457 andne r3, r3, #0x7c00 @ mask b only if clamped
458 movs r12, r11, asr #16 @ clamp r
459 mvnne r11, r12, lsr #16 @
460 movs r12, r7, asr #15 @ clamp g
461 mvnne r7, r12, lsr #15 @
46215: @ no clamp @
463 @
464 ldrb r12, [r4, r2] @ r12 = Y' = *(Y'_p + stride)
465 @
466 and r11, r11, #0xf800 @ pack pixel
467 and r7, r7, #0x7e00 @ r3 = pixel = (r & 0xf800) |
468 orr r11, r11, r7, lsr #4 @ ((g & 0x7e00) >> 4) |
469 orr r3, r11, r3, lsr #10 @ (b >> 10)
470 @
471 mov r11, #LCD2_DATA_MASK @ store pixel
472 orr r7, r11, r3, lsr #8 @
473 orr r11, r11, r3 @
47420: @
475 ldr r3, [r0] @
476 tst r3, #LCD2_BUSY_MASK @
477 bne 20b @
478 str r7, [r0] @
479 str r11, [r0] @
480 @
481 sub r7, r12, #16 @ r7 = Y = (Y' - 16)*149
482 add r12, r7, r7, asl #2 @
483 add r12, r12, r12, asl #4 @
484 add r7, r12, r7, asl #6 @
485 @ compute R, G, and B
486 add r3, r8, r7 @ r3 = b' = Y + bu
487 add r11, r9, r7, asl #1 @ r11 = r' = Y*2 + rv
488 rsb r7, r10, r7 @ r7 = g' = Y + guv
489 @
490 sub r12, r3, r3, lsr #5 @ r3 = 31/32*b + b/256
491 add r3, r12, r3, lsr #8 @
492 @
493 sub r12, r11, r11, lsr #5 @ r11 = 31/32*r + r/256
494 add r11, r12, r11, lsr #8 @
495 @
496 sub r12, r7, r7, lsr #6 @ r7 = 63/64*g + g/256
497 add r7, r12, r7, lsr #8 @
498 @
499 add r12, r14, #0x300 @
500 @
501 add r3, r3, r12 @ b = r3 + delta
502 add r11, r11, r12, lsl #1 @ r = r11 + delta*2
503 add r7, r7, r12, lsr #1 @ g = r7 + delta/2
504 @
505 orr r12, r3, r11, asr #1 @ check if clamping is needed...
506 orr r12, r12, r7 @ ...at all
507 movs r12, r12, asr #15 @
508 beq 15f @ no clamp @
509 movs r12, r3, asr #15 @ clamp b
510 mvnne r3, r12, lsr #15 @
511 andne r3, r3, #0x7c00 @ mask b only if clamped
512 movs r12, r11, asr #16 @ clamp r
513 mvnne r11, r12, lsr #16 @
514 movs r12, r7, asr #15 @ clamp g
515 mvnne r7, r12, lsr #15 @
51615: @ no clamp @
517 @
518 and r11, r11, #0xf800 @ pack pixel
519 and r7, r7, #0x7e00 @ r3 = pixel = (r & 0xf800) |
520 orr r11, r11, r7, lsr #4 @ ((g & 0x7e00) >> 4) |
521 orr r3, r11, r3, lsr #10 @ (b >> 10)
522 @
523 mov r11, #LCD2_DATA_MASK @ store pixel
524 orr r7, r11, r3, lsr #8 @
525 orr r11, r11, r3 @
52620: @
527 ldr r3, [r0] @
528 tst r3, #LCD2_BUSY_MASK @
529 bne 20b @
530 str r7, [r0] @
531 str r11, [r0] @
532 @
533 subs r1, r1, #2 @ subtract block from width
534 bgt 10b @ loop line @
535 @
536 ldmfd sp!, { r4-r12, pc } @ restore registers and return
537 .ltorg @ dump constant pool
538 .size lcd_write_yuv420_lines_odither, .-lcd_write_yuv420_lines_odither
diff --git a/firmware/target/arm/samsung/yh925/lcd-yh925.c b/firmware/target/arm/samsung/yh925/lcd-yh925.c
new file mode 100644
index 0000000000..8afcf58bea
--- /dev/null
+++ b/firmware/target/arm/samsung/yh925/lcd-yh925.c
@@ -0,0 +1,638 @@
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2006 by Barry Wardell
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version 2
15 * of the License, or (at your option) any later version.
16 *
17 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
18 * KIND, either express or implied.
19 *
20 ****************************************************************************/
21#include "config.h"
22#include "cpu.h"
23#include "lcd.h"
24#include "kernel.h"
25#include "system.h"
26
27/** Initialized in lcd_init_device() **/
28/* Is the power turned on? */
29static bool power_on;
30/* Is the display turned on? */
31static bool display_on;
32/* Amount of vertical offset. Used for flip offset correction/detection. */
33static int y_offset;
34/* Reverse flag. Must be remembered when display is turned off. */
35static unsigned short disp_control_rev;
36/* Contrast setting << 8 */
37static int lcd_contrast;
38
39static unsigned lcd_yuv_options SHAREDBSS_ATTR = 0;
40
41/* Forward declarations */
42#if defined(HAVE_LCD_ENABLE) || defined(HAVE_LCD_SLEEP)
43static void lcd_display_off(void);
44#endif
45
46/* register defines for the Renesas HD66773R */
47#define R_START_OSC 0x00
48#define R_DEVICE_CODE_READ 0x00
49#define R_DRV_OUTPUT_CONTROL 0x01
50#define R_DRV_AC_CONTROL 0x02
51#define R_POWER_CONTROL1 0x03
52#define R_POWER_CONTROL2 0x04
53#define R_ENTRY_MODE 0x05
54#define R_COMPARE_REG 0x06
55#define R_DISP_CONTROL 0x07
56#define R_FRAME_CYCLE_CONTROL 0x0b
57#define R_POWER_CONTROL3 0x0c
58#define R_POWER_CONTROL4 0x0d
59#define R_POWER_CONTROL5 0x0e
60#define R_GATE_SCAN_START_POS 0x0f
61#define R_VERT_SCROLL_CONTROL 0x11
62#define R_1ST_SCR_DRV_POS 0x14
63#define R_2ND_SCR_DRV_POS 0x15
64#define R_HORIZ_RAM_ADDR_POS 0x16
65#define R_VERT_RAM_ADDR_POS 0x17
66#define R_RAM_WRITE_DATA_MASK 0x20
67#define R_RAM_ADDR_SET 0x21
68#define R_WRITE_DATA_2_GRAM 0x22
69#define R_RAM_READ_DATA 0x22
70#define R_GAMMA_FINE_ADJ_POS1 0x30
71#define R_GAMMA_FINE_ADJ_POS2 0x31
72#define R_GAMMA_FINE_ADJ_POS3 0x32
73#define R_GAMMA_GRAD_ADJ_POS 0x33
74#define R_GAMMA_FINE_ADJ_NEG1 0x34
75#define R_GAMMA_FINE_ADJ_NEG2 0x35
76#define R_GAMMA_FINE_ADJ_NEG3 0x36
77#define R_GAMMA_GRAD_ADJ_NEG 0x37
78#define R_GAMMA_AMP_ADJ_POS 0x3a
79#define R_GAMMA_AMP_ADJ_NEG 0x3b
80
81static inline void lcd_wait_write(void)
82{
83 while (LCD2_PORT & LCD2_BUSY_MASK);
84}
85
86/* Send command */
87static inline void lcd_send_cmd(unsigned cmd)
88{
89 lcd_wait_write();
90 LCD2_PORT = LCD2_CMD_MASK; /* Send MSB first (should always be 0) */
91 lcd_wait_write();
92 LCD2_PORT = LCD2_CMD_MASK | cmd;
93}
94
95/* Send 16-bit data */
96static inline void lcd_send_data(unsigned data)
97{
98 lcd_wait_write();
99 LCD2_PORT = (data >> 8) | LCD2_DATA_MASK; /* Send MSB first */
100 lcd_wait_write();
101 LCD2_PORT = (data & 0xff) | LCD2_DATA_MASK;
102}
103
104/* Send 16-bit data byte-swapped. Only needed until we can use block transfer. */
105static inline void lcd_send_data_swapped(unsigned v)
106{
107 lcd_wait_write();
108 LCD2_PORT = LCD2_DATA_MASK | (v & 0xff); /* Send LSB first */
109 LCD2_PORT = LCD2_DATA_MASK | (v >> 8);
110}
111
112/* Write value to register */
113static void lcd_write_reg(int reg, int val)
114{
115 lcd_send_cmd(reg);
116 lcd_send_data(val);
117}
118
119/*** hardware configuration ***/
120
121int lcd_default_contrast(void)
122{
123 return DEFAULT_CONTRAST_SETTING;
124}
125
126void lcd_set_contrast(int val)
127{
128 /* Clamp val in range 0-14, 16-30 */
129 if (val < 1)
130 val = 0;
131 else if (val <= 15)
132 --val;
133 else if (val > 30)
134 val = 30;
135
136 lcd_contrast = val << 8;
137
138 if (!power_on)
139 return;
140
141 /* VCOMG=1, VDV4-0=xxxxx, VCM4-0=11000 */
142 lcd_write_reg(R_POWER_CONTROL5, 0x2018 | lcd_contrast);
143}
144
145void lcd_set_invert_display(bool yesno)
146{
147 if (yesno == (disp_control_rev == 0x0000))
148 return;
149
150 disp_control_rev = yesno ? 0x0000 : 0x0004;
151
152 if (!display_on)
153 return;
154
155 /* PT1-0=00, VLE2-1=00, SPT=0, GON=1, DTE=1, REV=x, D1-0=11 */
156 lcd_write_reg(R_DISP_CONTROL, 0x0033 | disp_control_rev);
157}
158
159
160/* turn the display upside down (call lcd_update() afterwards) */
161void lcd_set_flip(bool yesno)
162{
163 /* NOT MODIFIED FOR THE YH-925 */
164
165 if (yesno == (y_offset != 0))
166 return;
167
168 /* The LCD controller is 132x160 while the LCD itself is 128x160, so we need
169 * to shift the origin by 4 when we flip the LCD */
170 y_offset = yesno ? 4 : 0;
171
172 if (!power_on)
173 return;
174
175 /* SCN4-0=000x0 (G1/G160) */
176 lcd_write_reg(R_GATE_SCAN_START_POS, yesno ? 0x0002 : 0x0000);
177 /* SM=0, GS=x, SS=x, NL4-0=10011 (G1-G160) */
178 lcd_write_reg(R_DRV_OUTPUT_CONTROL, yesno ? 0x0213 : 0x0113);
179}
180
181/* LCD init */
182void lcd_init_device(void)
183{
184#if 0
185 /* This is the OF LCD init */
186 int i;
187
188 DEV_EN2 |= 0x2000;
189 DEV_INIT1 |= 0xfc000000;
190 CLCD_CLOCK_SRC &= ~0xf;
191 DEV_INIT2 &= ~0x400;
192
193 GPIOF_ENABLE |= 0x4;
194 GPIOF_OUTPUT_EN |= 0x4;
195 GPIOF_OUTPUT_VAL &= ~0x4;
196 udelay(300000);
197 GPIOF_OUTPUT_VAL |= 0x4;
198
199 outl(0x220, 0x70008a00);
200 outl(0x1f00, 0x70008a04);
201 LCD2_BLOCK_CTRL = 0x10008080;
202 LCD2_BLOCK_CONFIG = 0xf00000;
203 udelay(100000);
204
205 for (i = 0; i < 8; i++)
206 {
207 lcd_send_data(0);
208 udelay(1);
209 }
210
211 lcd_write_reg(R_START_OSC, 0x0001);
212 udelay(20000);
213 lcd_write_reg(R_DRV_OUTPUT_CONTROL, 0x0315);
214 lcd_write_reg(R_DRV_AC_CONTROL, 0x0700);
215 lcd_write_reg(R_ENTRY_MODE, 0x1028);
216 lcd_write_reg(R_COMPARE_REG, 0x0000);
217 lcd_write_reg(R_FRAME_CYCLE_CONTROL, 0x4008);
218 lcd_write_reg(R_RAM_ADDR_SET, 0x0000);
219 lcd_write_reg(R_GAMMA_FINE_ADJ_POS1, 0x0700);
220 lcd_write_reg(R_GAMMA_FINE_ADJ_POS2, 0x0000);
221 lcd_write_reg(R_GAMMA_FINE_ADJ_POS3, 0x0000);
222 lcd_write_reg(R_GAMMA_GRAD_ADJ_POS, 0x0100);
223 lcd_write_reg(R_GAMMA_FINE_ADJ_NEG1, 0x0707);
224 lcd_write_reg(R_GAMMA_FINE_ADJ_NEG2, 0x0007);
225 lcd_write_reg(R_GAMMA_FINE_ADJ_NEG3, 0x0700);
226 lcd_write_reg(R_GAMMA_GRAD_ADJ_NEG, 0x0001);
227 lcd_write_reg(R_GATE_SCAN_START_POS, 0x0000);
228 lcd_write_reg(R_VERT_SCROLL_CONTROL, 0x0000);
229 lcd_write_reg(R_1ST_SCR_DRV_POS, 0xaf10);
230 lcd_write_reg(R_2ND_SCR_DRV_POS, 0x0000);
231 lcd_write_reg(R_HORIZ_RAM_ADDR_POS, 0x7f00); /* ((LCD_HEIGHT - 1) << 8 | 0 */
232 lcd_write_reg(R_VERT_RAM_ADDR_POS, 0xaf10); /* ((LCD_WIDTH + 16 - 1) << 8) | 16 */
233 lcd_write_reg(R_GAMMA_AMP_ADJ_POS, 0x1600);
234 lcd_write_reg(R_GAMMA_AMP_ADJ_NEG, 0x0006);
235 lcd_write_reg(R_DISP_CONTROL, 0x0104);
236 lcd_write_reg(R_POWER_CONTROL4, 0x0100);
237 lcd_write_reg(R_POWER_CONTROL5, 0x0d18);
238 lcd_write_reg(R_POWER_CONTROL3, 0x0000);
239 udelay(50000);
240 lcd_write_reg(R_POWER_CONTROL1, 0x0008);
241 lcd_write_reg(R_POWER_CONTROL3, 0x0000);
242 lcd_write_reg(R_POWER_CONTROL2, 0x0000);
243 udelay(50000);
244 lcd_write_reg(R_POWER_CONTROL5, 0x2d18);
245 lcd_write_reg(R_POWER_CONTROL3, 0x0000);
246 udelay(50000);
247 lcd_write_reg(R_POWER_CONTROL4, 0x0110);
248 //~ lcd_clear_display();
249 lcd_write_reg(R_DISP_CONTROL, 0x0105);
250 udelay(20000);
251 lcd_write_reg(R_DISP_CONTROL, 0x0125);
252 lcd_write_reg(R_DISP_CONTROL, 0x0127);
253 udelay(20000);
254 lcd_write_reg(R_DISP_CONTROL, 0x0137);
255 lcd_send_cmd(R_WRITE_DATA_2_GRAM);
256
257 GPIOF_ENABLE |= 0x02;
258 GPIOF_OUTPUT_EN |= 0x02;
259 GPIOF_OUTPUT_VAL |= 0x02;
260#endif
261
262#ifndef BOOTLOADER
263 /* The OF won't boot if this is done in the bootloader - ideally we should
264 tweak the lcd controller speed settings but this will do for now */
265 CLCD_CLOCK_SRC |= 0xc0000000; /* Set LCD interface clock to PLL */
266#endif
267
268 /* only these bits are needed from the OF init */
269 lcd_write_reg(R_DRV_OUTPUT_CONTROL, 0x0215);
270 lcd_write_reg(R_ENTRY_MODE, 0x1028);
271
272 power_on = true;
273 display_on = true;
274 y_offset = 0;
275 disp_control_rev = 0x0004;
276 lcd_contrast = DEFAULT_CONTRAST_SETTING << 8;
277}
278
279/* THE SLEEP AND POWER FUNCTIONS HAVE NOT BEEN MODIFIED FOR THE YH-925 */
280
281#ifdef HAVE_LCD_SLEEP
282static void lcd_power_on(void)
283{
284 /* Be sure standby bit is clear. */
285 /* BT2-0=000, DC2-0=000, AP2-0=000, SLP=0, STB=0 */
286 lcd_write_reg(R_POWER_CONTROL1, 0x0000);
287
288 /** Power ON Sequence **/
289 /* Per datasheet Rev.1.10, Jun.21.2003, p. 99 */
290
291 lcd_write_reg(R_START_OSC, 0x0001); /* Start Oscillation */
292 /* 10ms or more for oscillation circuit to stabilize */
293 sleep(HZ/50);
294 /* Instruction (1) for power setting; VC2-0, VRH3-0, CAD,
295 VRL3-0, VCM4-0, VDV4-0 */
296 /* VC2-0=001 */
297 lcd_write_reg(R_POWER_CONTROL3, 0x0001);
298 /* VRL3-0=0100, PON=0, VRH3-0=0001 */
299 lcd_write_reg(R_POWER_CONTROL4, 0x0401);
300 /* CAD=1 */
301 lcd_write_reg(R_POWER_CONTROL2, 0x8000);
302 /* VCOMG=0, VDV4-0=xxxxx (19), VCM4-0=11000 */
303 lcd_write_reg(R_POWER_CONTROL5, 0x0018 | lcd_contrast);
304 /* Instruction (2) for power setting; BT2-0, DC2-0, AP2-0 */
305 /* BT2-0=000, DC2-0=001, AP2-0=011, SLP=0, STB=0 */
306 lcd_write_reg(R_POWER_CONTROL1, 0x002c);
307 /* Instruction (3) for power setting; VCOMG = "1" */
308 /* VCOMG=1, VDV4-0=xxxxx (19), VCM4-0=11000 */
309 lcd_write_reg(R_POWER_CONTROL5, 0x2018 | lcd_contrast);
310
311 /* 40ms or more; time for step-up circuits 1,2 to stabilize */
312 sleep(HZ/25);
313
314 /* Instruction (4) for power setting; PON = "1" */
315 /* VRL3-0=0100, PON=1, VRH3-0=0001 */
316 lcd_write_reg(R_POWER_CONTROL4, 0x0411);
317
318 /* 40ms or more; time for step-up circuit 4 to stabilize */
319 sleep(HZ/25);
320
321 /* Instructions for other mode settings (in register order). */
322 /* SM=0, GS=x, SS=0, NL4-0=10011 (G1-G160)*/
323 lcd_write_reg(R_DRV_OUTPUT_CONTROL, y_offset ? 0x0013 : 0x0113); /* different to X5 */
324 /* FLD1-0=01 (1 field), B/C=1, EOR=1 (C-pat), NW5-0=000000 (1 row) */
325 lcd_write_reg(R_DRV_AC_CONTROL, 0x0700);
326 /* DIT=0, BGR=1, HWM=0, I/D1-0=10, AM=1, LG2-0=000 */
327 lcd_write_reg(R_ENTRY_MODE, 0x1028); /* different to X5 */
328 /* CP15-0=0000000000000000 */
329 lcd_write_reg(R_COMPARE_REG, 0x0000);
330 /* NO1-0=01, SDT1-0=00, EQ1-0=00, DIV1-0=00, RTN3-00000 */
331 lcd_write_reg(R_FRAME_CYCLE_CONTROL, 0x4000);
332 /* SCN4-0=000x0 (G1/G160) */
333/* lcd_write_reg(R_GATE_SCAN_START_POS, y_offset ? 0x0000 : 0x0002); */
334 /* VL7-0=0x00 */
335 lcd_write_reg(R_VERT_SCROLL_CONTROL, 0x0000);
336 /* SE17-10(End)=0x9f (159), SS17-10(Start)=0x00 */
337 lcd_write_reg(R_1ST_SCR_DRV_POS, 0x9f00);
338 /* SE27-20(End)=0x5c (92), SS27-20(Start)=0x00 */
339 lcd_write_reg(R_2ND_SCR_DRV_POS, 0x5c00);
340 /* HEA7-0=7f, HSA7-0=00 */
341 lcd_write_reg(R_HORIZ_RAM_ADDR_POS, 0x7f00);
342 /* PKP12-10=0x0, PKP02-00=0x0 */
343 lcd_write_reg(R_GAMMA_FINE_ADJ_POS1, 0x0003);
344 /* PKP32-30=0x4, PKP22-20=0x0 */
345 lcd_write_reg(R_GAMMA_FINE_ADJ_POS2, 0x0400);
346 /* PKP52-50=0x4, PKP42-40=0x7 */
347 lcd_write_reg(R_GAMMA_FINE_ADJ_POS3, 0x0407);
348 /* PRP12-10=0x3, PRP02-00=0x5 */
349 lcd_write_reg(R_GAMMA_GRAD_ADJ_POS, 0x0305);
350 /* PKN12-10=0x0, PKN02-00=0x3 */
351 lcd_write_reg(R_GAMMA_FINE_ADJ_NEG1, 0x0003);
352 /* PKN32-30=0x7, PKN22-20=0x4 */
353 lcd_write_reg(R_GAMMA_FINE_ADJ_NEG2, 0x0704);
354 /* PKN52-50=0x4, PRN42-40=0x7 */
355 lcd_write_reg(R_GAMMA_FINE_ADJ_NEG3, 0x0407);
356 /* PRN12-10=0x5, PRN02-00=0x3 */
357 lcd_write_reg(R_GAMMA_GRAD_ADJ_NEG, 0x0503);
358 /* VRP14-10=0x14, VRP03-00=0x09 */
359 lcd_write_reg(R_GAMMA_AMP_ADJ_POS, 0x1409);
360 /* VRN14-00=0x06, VRN03-00=0x02 */
361 lcd_write_reg(R_GAMMA_AMP_ADJ_NEG, 0x0602);
362
363 /* 100ms or more; time for step-up circuits to stabilize */
364 sleep(HZ/10);
365
366 power_on = true;
367}
368
369static void lcd_power_off(void)
370{
371 /* Display must be off first */
372 if (display_on)
373 lcd_display_off();
374
375 power_on = false;
376
377 /** Power OFF sequence **/
378 /* Per datasheet Rev.1.10, Jun.21.2003, p. 99 */
379
380 /* Step-up1 halt setting bit */
381 /* BT2-0=110, DC2-0=001, AP2-0=011, SLP=0, STB=0 */
382 lcd_write_reg(R_POWER_CONTROL1, 0x062c);
383 /* Step-up3,4 halt setting bit */
384 /* VRL3-0=0100, PON=0, VRH3-0=0001 */
385 lcd_write_reg(R_POWER_CONTROL4, 0x0401);
386 /* VCOMG=0, VDV4-0=10011, VCM4-0=11000 */
387 lcd_write_reg(R_POWER_CONTROL5, 0x0018 | lcd_contrast);
388
389 /* Wait 100ms or more */
390 sleep(HZ/10);
391
392 /* Step-up2,amp halt setting bit */
393 /* BT2-0=000, DC2-0=000, AP2-0=000, SLP=0, STB=0 */
394 lcd_write_reg(R_POWER_CONTROL1, 0x0000);
395}
396
397void lcd_sleep(void)
398{
399 if (power_on)
400 lcd_power_off();
401
402 /* Set standby mode */
403 /* BT2-0=000, DC2-0=000, AP2-0=000, SLP=0, STB=1 */
404 lcd_write_reg(R_POWER_CONTROL1, 0x0001);
405}
406#endif
407
408#if defined(HAVE_LCD_ENABLE) || defined(HAVE_LCD_SLEEP)
409static void lcd_display_off(void)
410{
411 display_on = false;
412
413 /** Display OFF sequence **/
414 /* Per datasheet Rev.1.10, Jun.21.2003, p. 97 */
415
416 /* EQ1-0=00 already */
417
418 /* PT1-0=00, VLE2-1=00, SPT=0, GON=1, DTE=1, REV=x, D1-0=10 */
419 lcd_write_reg(R_DISP_CONTROL, 0x0032 | disp_control_rev);
420
421 sleep(HZ/25); /* Wait 2 frames or more */
422
423 /* PT1-0=00, VLE2-1=00, SPT=0, GON=1, DTE=0, REV=x, D1-0=10 */
424 lcd_write_reg(R_DISP_CONTROL, 0x0022 | disp_control_rev);
425
426 sleep(HZ/25); /* Wait 2 frames or more */
427
428 /* PT1-0=00, VLE2-1=00, SPT=0, GON=0, DTE=0, REV=0, D1-0=00 */
429 lcd_write_reg(R_DISP_CONTROL, 0x0000);
430}
431#endif
432
433#if defined(HAVE_LCD_ENABLE)
434static void lcd_display_on(void)
435{
436 /* Be sure power is on first */
437 if (!power_on)
438 lcd_power_on();
439
440 /** Display ON Sequence **/
441 /* Per datasheet Rev.1.10, Jun.21.2003, p. 97 */
442
443 /* PT1-0=00, VLE2-1=00, SPT=0, GON=0, DTE=0, REV=0, D1-0=01 */
444 lcd_write_reg(R_DISP_CONTROL, 0x0001);
445
446 sleep(HZ/25); /* Wait 2 frames or more */
447
448 /* PT1-0=00, VLE2-1=00, SPT=0, GON=1, DTE=0, REV=x, D1-0=01 */
449 lcd_write_reg(R_DISP_CONTROL, 0x0021 | disp_control_rev);
450 /* PT1-0=00, VLE2-1=00, SPT=0, GON=1, DTE=0, REV=x, D1-0=11 */
451 lcd_write_reg(R_DISP_CONTROL, 0x0023 | disp_control_rev);
452
453 sleep(HZ/25); /* Wait 2 frames or more */
454
455 /* PT1-0=00, VLE2-1=00, SPT=0, GON=1, DTE=1, REV=x, D1-0=11 */
456 lcd_write_reg(R_DISP_CONTROL, 0x0033 | disp_control_rev);
457
458 display_on = true;
459}
460
461void lcd_enable(bool on)
462{
463 if (on == display_on)
464 return;
465
466 if (on)
467 {
468 lcd_display_on();
469 /* Probably out of sync and we don't wanna pepper the code with
470 lcd_update() calls for this. */
471 lcd_update();
472 lcd_activation_call_hook();
473 }
474 else
475 {
476 lcd_display_off();
477 }
478}
479#endif
480
481#if defined(HAVE_LCD_ENABLE) || defined(HAVE_LCD_SLEEP)
482bool lcd_active(void)
483{
484 return display_on;
485}
486#endif
487
488/*** update functions ***/
489
490void lcd_yuv_set_options(unsigned options)
491{
492 lcd_yuv_options = options;
493}
494
495/* Line write helper function for lcd_yuv_blit. Write two lines of yuv420. */
496extern void lcd_write_yuv420_lines(unsigned char const * const src[3],
497 int width,
498 int stride);
499extern void lcd_write_yuv420_lines_odither(unsigned char const * const src[3],
500 int width,
501 int stride,
502 int x_screen, /* To align dither pattern */
503 int y_screen);
504
505/* Performance function to blit a YUV bitmap directly to the LCD */
506void lcd_blit_yuv(unsigned char * const src[3],
507 int src_x, int src_y, int stride,
508 int x, int y, int width, int height)
509{
510 const unsigned char *yuv_src[3];
511 const unsigned char *ysrc_max;
512 int y0;
513 int options;
514
515 /* NOT MODIFIED FOR THE YH-925 */
516
517 if (!display_on)
518 return;
519
520 width &= ~1;
521 height &= ~1;
522
523 /* calculate the drawing region */
524
525 /* The 20GB LCD is actually 128x160 but rotated 90 degrees so the origin
526 * is actually the bottom left and horizontal and vertical are swapped.
527 * Rockbox expects the origin to be the top left so we need to use
528 * 127 - y instead of just y */
529
530 /* max vert << 8 | start vert */
531 lcd_write_reg(R_VERT_RAM_ADDR_POS, ((x + width - 1) << 8) | x);
532
533 y0 = LCD_HEIGHT - 1 - y + y_offset;
534
535 /* DIT=0, BGR=1, HWM=0, I/D1-0=10, AM=0, LG2-0=000 */
536 lcd_write_reg(R_ENTRY_MODE, 0x1020);
537
538 yuv_src[0] = src[0] + src_y * stride + src_x;
539 yuv_src[1] = src[1] + (src_y * stride >> 2) + (src_x >> 1);
540 yuv_src[2] = src[2] + (yuv_src[1] - src[1]);
541 ysrc_max = yuv_src[0] + height * stride;
542
543 options = lcd_yuv_options;
544
545 do
546 {
547 /* max horiz << 8 | start horiz */
548 lcd_write_reg(R_HORIZ_RAM_ADDR_POS, (y0 << 8) | (y0 - 1));
549
550 /* position cursor (set AD0-AD15) */
551 /* start vert << 8 | start horiz */
552 lcd_write_reg(R_RAM_ADDR_SET, (x << 8) | y0);
553
554 /* start drawing */
555 lcd_send_cmd(R_WRITE_DATA_2_GRAM);
556
557 if (options & LCD_YUV_DITHER)
558 {
559 lcd_write_yuv420_lines_odither(yuv_src, width, stride,
560 x, y);
561 y -= 2;
562 }
563 else
564 {
565 lcd_write_yuv420_lines(yuv_src, width, stride);
566 }
567
568 y0 -= 2;
569 yuv_src[0] += stride << 1;
570 yuv_src[1] += stride >> 1;
571 yuv_src[2] += stride >> 1;
572 }
573 while (yuv_src[0] < ysrc_max);
574
575 /* DIT=0, BGR=1, HWM=0, I/D1-0=10, AM=1, LG2-0=000 */
576 lcd_write_reg(R_ENTRY_MODE, 0x1028);
577}
578
579
580/* Update a fraction of the display. */
581void lcd_update_rect(int x0, int y0, int width, int height)
582{
583 int x1, y1;
584 int lcd_x0, lcd_x1, lcd_y0, lcd_y1;
585 unsigned short *addr;
586
587 if (!display_on)
588 return;
589
590 /* calculate the drawing region */
591 y1 = (y0 + height) - 1; /* max vert */
592 x1 = (x0 + width) - 1; /* max horiz */
593
594 if(x1 >= LCD_WIDTH)
595 x1 = LCD_WIDTH - 1;
596 if (x1 <= 0)
597 return; /* nothing left to do, 0 is harmful to lcd_write_data() */
598 if(y1 >= LCD_HEIGHT)
599 y1 = LCD_HEIGHT-1;
600
601 /* The LCD is actually 128x160 rotated 90 degrees */
602 lcd_x0 = (LCD_HEIGHT - 1) - y1 + 4;
603 lcd_x1 = (LCD_HEIGHT - 1) - y0 + 4;
604 lcd_y0 = x0 + 16;
605 lcd_y1 = x1 + 16;
606
607 /* set the drawing window */
608 lcd_write_reg(R_HORIZ_RAM_ADDR_POS, (lcd_x1 << 8) | lcd_x0);
609 lcd_write_reg(R_VERT_RAM_ADDR_POS, (lcd_y1 << 8) | lcd_y0);
610
611 /* set the starting position */
612 lcd_write_reg(R_RAM_ADDR_SET, (lcd_y0 << 8) | lcd_x1);
613
614 /* start drawing */
615 lcd_send_cmd(R_WRITE_DATA_2_GRAM);
616
617 addr = (unsigned short*)&lcd_framebuffer[y0][x0];
618
619 int c, r;
620
621 /* for each row */
622 for (r = 0; r < height; r++) {
623 /* for each column */
624 for (c = 0; c < width; c++) {
625 /* output 1 pixel */
626 lcd_send_data(*addr++);
627 }
628
629 addr += (LCD_WIDTH - width);
630 }
631}
632
633/* Update the display.
634 This must be called after all other LCD functions that change the display. */
635void lcd_update(void)
636{
637 lcd_update_rect(0, 0, LCD_WIDTH, LCD_HEIGHT);
638}
diff --git a/firmware/target/arm/samsung/yh925/powermgmt-yh925.c b/firmware/target/arm/samsung/yh925/powermgmt-yh925.c
new file mode 100644
index 0000000000..6d7e3487aa
--- /dev/null
+++ b/firmware/target/arm/samsung/yh925/powermgmt-yh925.c
@@ -0,0 +1,59 @@
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2002 by Heikki Hannikainen, Uwe Freese
11 * Revisions copyright (C) 2005 by Gerald Van Baren
12 *
13 * This program is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU General Public License
15 * as published by the Free Software Foundation; either version 2
16 * of the License, or (at your option) any later version.
17 *
18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19 * KIND, either express or implied.
20 *
21 ****************************************************************************/
22
23#include "config.h"
24#include "adc.h"
25#include "powermgmt.h"
26
27/* TODO: Not yet calibrated */
28
29const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT] =
30{
31 3733
32};
33
34const unsigned short battery_level_shutoff[BATTERY_TYPES_COUNT] =
35{
36 3627
37};
38
39/* voltages (millivolt) of 0%, 10%, ... 100% when charging disabled */
40const unsigned short percent_to_volt_discharge[BATTERY_TYPES_COUNT][11] =
41{
42 { 3733, 3772, 3821, 3840, 3869, 3917, 3985, 4034, 4072, 4140, 4198 }
43};
44
45/* voltages (millivolt) of 0%, 10%, ... 100% when charging enabled */
46const unsigned short percent_to_volt_charge[11] =
47{
48 3956, 3995, 4024, 4043, 4063, 4082, 4111, 4140, 4179, 4218, 4266
49};
50
51#define BATTERY_SCALE_FACTOR 4650
52/* full-scale ADC readout (2^10) in millivolt */
53
54/* Returns battery voltage from ADC [millivolts] */
55unsigned int battery_adc_voltage(void)
56{
57 /* return (adc_read(ADC_UNREG_POWER) * BATTERY_SCALE_FACTOR) >> 10; */
58 return 4100;
59}
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